In this photo released by Xinhua News Agency, rescue workers pass by an ambulance in the aftermath of an explosion at Changzhi city’s Liushenyu coal mine in Qinyuan county, northern China’s Shanxi Province on Saturday,

At least 90 people have been killed after a gas explosion in a Chinese coal mine, according to state media.

Xi called for authorities to "spare no effort" in treating the injured and conducting search and rescue operations, while ordering a thorough investigation into the cause of the accident and strict ac...